<template>
    <!-- 头部 -->
    <header class="header">
        <!-- 头部的第一行 -->
        <div class="top">
            <div class="container">
                <div class="loginList">
                    <p>尚品汇欢迎您！</p>
                    <!-- 用户登录了，显示用户信息与退出登录 ||用户没有登录，显示的是登录与注册-->
                    <p v-if="!userInfo.name">
                        <span>请</span>
                        <!-- 声明式导航务必要有to属性 -->
                        <router-link to="/login">登录</router-link>
                        <router-link class="register" to="/register">免费注册</router-link>
                    </p>
                    <p v-else>
                        <a>{{userInfo.name}}</a>
                        <a class="register" @click="logout">退出登录</a>
                    </p>
                </div>
                <div class="typeList">
                    <a href="###">我的订单</a>
                    <a href="###">我的购物车</a>
                    <a href="###">我的尚品汇</a>
                    <a href="###">尚品汇会员</a>
                    <a href="###">企业采购</a>
                    <a href="###">关注尚品汇</a>
                    <a href="###">合作招商</a>
                    <a href="###">商家后台</a>
                </div>
            </div>
        </div>
        <!--头部第二行 搜索区域-->
        <div class="bottom">
            <h1 class="logoArea">
                <router-link class="logo" title="尚品汇" to="/home">
                    <img src="./images/logo.png" alt="">
                </router-link>
            </h1>
            <div class="searchArea">
                <form action="###" class="searchForm">
                    <input type="text" id="autocomplete" class="input-error input-xxlarge" v-model="keyWord" />
                    <button class="sui-btn btn-xlarge btn-danger" type="button" @click="goSearch">搜索</button>
                </form>
            </div>
        </div>
    </header>
</template>

<script>
    import {mapState} from 'vuex'
    export default {
        name: 'Header',
        data() {
            return {
                keyWord: ''
            }
        },
        methods: {
            goSearch() {
                // this.$router.push('/search')
                // 模板字符串写法
                // this.$router.push(`/search/${this.keyWord}?k=${this.keyWord.toUpperCase()}`)
                // 对象写法
                // this.$router.push({name:'search',params:{keyWord: this.keyWord},query:{k:this.keyWord.toUpperCase()}})

                // 判断是否携带了query参数
                if (this.$route.query) {
                    let location = {
                        name: 'search',
                        params: {
                            keyWord: this.keyWord || undefined
                        }
                    }
                    location.query = this.$route.query
                    this.$router.push(location)
                    if (this.$route.path != "/home") {
                        this.$router.replace(location)
                    } else {
                        this.$router.push(location)
                    }
                }
                //
            },
            //退出登录
            logout() {
                //退出登录的请求
                this.$store.dispatch('userLogout');
            }
        },
        mounted() {
            this.$eventBus.$on('changeKeyword', () => {
                this.keyWord = ''
            })
        },
        computed: {
            ...mapState({
                userInfo: state => state.user.userInfo
            })
        }
    }
</script>

<style scoped lang="less">
    .header {
        &>.top {
            background-color: #eaeaea;
            height: 30px;
            line-height: 30px;

            .container {
                width: 1200px;
                margin: 0 auto;
                overflow: hidden;

                .loginList {
                    float: left;

                    p {
                        float: left;
                        margin-right: 10px;

                        .register {
                            border-left: 1px solid #b3aeae;
                            padding: 0 5px;
                            margin-left: 5px;
                        }
                    }
                }

                .typeList {
                    float: right;

                    a {
                        padding: 0 10px;

                        &+a {
                            border-left: 1px solid #b3aeae;
                        }
                    }

                }

            }
        }

        &>.bottom {
            width: 1200px;
            margin: 0 auto;
            overflow: hidden;

            .logoArea {
                float: left;

                .logo {
                    img {
                        width: 175px;
                        margin: 25px 45px;
                    }
                }
            }

            .searchArea {
                float: right;
                margin-top: 35px;

                .searchForm {
                    overflow: hidden;

                    input {
                        box-sizing: border-box;
                        width: 490px;
                        height: 32px;
                        padding: 0px 4px;
                        border: 2px solid #ea4a36;
                        float: left;

                        &:focus {
                            outline: none;
                        }
                    }

                    button {
                        height: 32px;
                        width: 68px;
                        background-color: #ea4a36;
                        border: none;
                        color: #fff;
                        float: left;
                        cursor: pointer;

                        &:focus {
                            outline: none;
                        }
                    }
                }
            }
        }
    }
</style>